Photo of rats

Thanks to the scent, the rat is able to detect even a small percentage of the toxic substance in the food. Because of this, people are very hard to poison them. On a day, they can travel about 40 to 50 kilometers in search of food, at a speed of up to 10 kilometers per hour.
http://komotoz.ru/photo/photo_krys.php

Thanks for the support in my messages.@magnata